1 /* 2 * Copyright (c) 1982 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 * 6 * @(#)ns.h 6.6 (Berkeley) 07/26/85 7 */ 8 9 /* 10 * Constants and Structures defined by the Xerox Network Software 11 * per "Internet Transport Protocols", XSIS 028112, December 1981 12 */ 13 14 /* 15 * Protocols 16 */ 17 #define NSPROTO_RI 1 /* Routing Information */ 18 #define NSPROTO_ECHO 2 /* Echo Protocol */ 19 #define NSPROTO_ERROR 3 /* Error Protocol */ 20 #define NSPROTO_PE 4 /* Packet Exchange */ 21 #define NSPROTO_SPP 5 /* Sequenced Packet */ 22 #define NSPROTO_RAW 255 /* Placemarker*/ 23 #define NSPROTO_MAX 256 /* Placemarker*/ 24 25 26 /* 27 * Port/Socket numbers: network standard functions 28 */ 29 30 #define NSPORT_RI 1 /* Routing Information */ 31 #define NSPORT_ECHO 2 /* Echo */ 32 #define NSPORT_RE 3 /* Router Error */ 33 34 /* 35 * Ports < NSPORT_RESERVED are reserved for priveleged 36 * processes (e.g. root). 37 */ 38 #define NSPORT_RESERVED 3000 39 40 /* flags passed to ns_output as last parameter */ 41 42 #define NS_FORWARDING 0x1 /* most of idp header exists */ 43 #define NS_ROUTETOIF 0x10 /* same as SO_DONTROUTE */ 44 #define NS_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */ 45 46 #define NS_MAXHOPS 15 47 48 /* flags passed to get/set socket option */ 49 #define SO_HEADERS_ON_INPUT 1 50 #define SO_HEADERS_ON_OUTPUT 2 51 #define SO_DEFAULT_HEADERS 3 52 #define SO_LAST_HEADER 4 53 #define SO_NSIP_ROUTE 5 54 #define SO_SEQNO 6 55 #define SO_ALL_PACKETS 7 56 57 58 /* 59 * NS addressing 60 */ 61 union ns_host { 62 u_char c_host[6]; 63 u_short s_host[3]; 64 }; 65 66 union ns_net { 67 u_char c_net[4]; 68 u_short s_net[2]; 69 }; 70 71 struct ns_addr { 72 union ns_net x_net; 73 union ns_host x_host; 74 u_short x_port; 75 }; 76 77 /* 78 * Socket address, Xerox style 79 */ 80 struct sockaddr_ns { 81 u_short sns_family; 82 struct ns_addr sns_addr; 83 char sns_zero[2]; 84 }; 85 #define sns_port sns_addr.x_port 86 87 #define ns_netof(a) (*(long *) & ((a).x_net)) 88 #define satons_addr(sa) (((struct sockaddr_ns *)&(sa))->sns_addr) 89 #define ns_hosteqnh(s,t) ((s).s_host[0] == (t).s_host[0] && \ 90 (s).s_host[1] == (t).s_host[1] && (s).s_host[2] == (t).s_host[2]) 91 #define ns_hosteq(s,t) (ns_hosteqnh((s).x_host,(t).x_host)) 92 #define ns_nullhost(x) (((x).x_host.s_host[0]==0) && \ 93 ((x).x_host.s_host[1]==0) && ((x).x_host.s_host[2]==0)) 94 95 #if !defined(vax) 96 #if !defined(INET) 97 /* 98 * Macros for number representation conversion. 99 */ 100 #define ntohl(x) (x) 101 #define ntohs(x) (x) 102 #define htonl(x) (x) 103 #define htons(x) (x) 104 #endif 105 #endif 106 107 #ifdef KERNEL 108 extern struct domain nsdomain; 109 extern union ns_host ns_thishost; 110 extern union ns_host ns_zerohost; 111 extern union ns_host ns_broadhost; 112 u_short ns_cksum(); 113 #endif 114